llvm-project/llvm/test/CodeGen/X86/2008-09-29-VolatileBug.ll

26 lines
857 B
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- | FileCheck %s
; PR2835
@g_407 = internal global i32 0 ; <i32*> [#uses=1]
@llvm.used = appending global [1 x i8*] [ i8* bitcast (i32 ()* @main to i8*) ], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0]
define i32 @main() nounwind {
; CHECK-LABEL: main:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movl g_407, %eax
; CHECK-NEXT: movzbl %al, %eax
; CHECK-NEXT: pushl %eax
; CHECK-NEXT: calll func_45
; CHECK-NEXT: addl $4, %esp
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: retl
entry:
%0 = load volatile i32, i32* @g_407, align 4 ; <i32> [#uses=1]
%1 = trunc i32 %0 to i8 ; <i8> [#uses=1]
%2 = tail call i32 @func_45(i8 zeroext %1) nounwind ; <i32> [#uses=0]
ret i32 0
}
declare i32 @func_45(i8 zeroext) nounwind